Then apt-get install kdm kdebase hal (respond "Y" when asked if you are sure, but be careful, don't respond "Y" if apt-get tries to remove important packages -- there's no way to know in advance, since it depends on the Etch status at the time you upgrade)

Choose "N" when asked about replacing configuration files. (that's not a rule, usually you need to judge case by case, but I chose "N" to keep it simple and I didn't have any problems)

Reboot.

In case you have problems mounting disks: Start KUser and add user 'hal' to the group 'disk'. Save changes. Reboot